Matt touches on how devs can ensure information shared across apps stay secure:

“The goal of a mobile developer in the payment space in regards to security should be to answer the question following question: “How do I gain and maintain my customer’s trust?” Security is, and will continue to be, paramount in the mobile payments industry. SSL, TLS, encryption and biometrics are all technologies that every mobile developer wanting to deliver payment apps should be using. Proper vetting of resources that you want to consume will help to ensure that your customer’s data is kept secure. Today’s customers are willing to make commerce a daily part of their mobile routine; your app’s security should always reinforce that decision.”